Spark plug Bosch or Denso

Have used NGK on my Toyota Prius v, works just fine, never had problems.

Changed them recently, still had factory Denso spark plugs, and they worked alright too, even after 121k miles of use.

That is what I am running in this 1996 Corolla and my gas Mileage is better than ever! Made a huge difference in power .

For the last twenty or so years I have only used Bosch plugs. I have had great service in my VWs, Toyotas and Ford.

I have eqt and the densos and they are smooth

if not oem ACDelco get ones from the likes of ngk, or bosch.

Denso IKh024

I run the Denso.

I'm running a Blue coil (only because the blue is cool), a compufire, and bosch plugs and wires. The blue coil is juat something to look at. You really wont notice a difference.

The original dealership where I bought the van installed Denso spark plugs part # SXU22HCR11S which were supposed to have a gap of 0.044 but they all had either 0.039 or 0.040. Apparently no one checked the gap before putting them in.

In my experience, Bosch spark plugs are always terrible; fouling out within a month, that kind of thing...